Senior Back-end Developer (Java + Kotlin + AWS)

Description

Job Summary: We are seeking senior back-end developers to build and maintain robust, scalable, and high-performance financial systems. Key Highlights: 1. Work in a challenging environment focused on innovation and security 2. Contribute to solutions such as internet banking and payment platforms 3. Develop scalable systems for financial platforms Job: Senior Back\-end Developer (Java \+ Kotlin \+ AWS) Location: São Paulo – SP (Bela Vista) Mode: Hybrid (3 days per week onsite) Number of Positions: 7 About the Opportunity We are looking for senior professionals with strong back-end development experience to build and maintain robust, scalable, and high-performance financial systems. You will join a challenging environment focused on innovation, security, and high availability, directly contributing to solutions such as internet banking, digital wallets, and payment platforms. Responsibilities Develop scalable systems for financial platforms (banking, payments, and integrations); Focus on performance, security of sensitive data (encryption, authentication, tokenization), and compliance (LGPD, PCI\-DSS); Ensure high availability and low latency for systems handling large transaction volumes; Develop and maintain microservices; Create secure integrations with banks, payment gateways, and external services; Ensure observability, resilience, and stability of applications; ✅ Mandatory Requirements Solid experience with Java and Kotlin; Experience with Spring Boot and Spring Framework; Experience with PostgreSQL and NoSQL databases; Experience with AWS (SNS, SQS, DynamoDB, etc.); Experience with messaging systems (Kafka); Experience with Docker (containerization); Experience with Git; * Nice-to-have Knowledge of Node.js; Compensation CLT employment contract \+ BENEFITS — Market-competitive salary range (senior level), Desired Profile Analytical professionals focused on quality and security, with strong communication skills and the ability to thrive in dynamic, high-criticality environments. Minimum Education: Bachelor's Degree